The absolute rule of this powerful prelate greatly checked the national risings of the Swabian leaders, for he strenuously maintained the oneness of Church and State. Conrad I. (911-919), the last of the East Frankish kings, gave all his energies to the one aim of strengthening and solidifying his rule by the suppression or abolition of the dukedoms, which he saw undermined the power of the sovereign. Relying on the support of the clergy, he was strongly influenced by Solomon's insinuations when he put forth his bloody measures against the Swabian pretenders. During the reign of Louis the Child the state of anarchy had begotten numerous national risings, which led to the establishment of the Bavarian, Frankish, and Saxon duchies. At its very close a similar attempt was ventured upon in Alamannia. Burkhard, Marquis of Chur-Rhætia, afterwards Graubünden, one of the most eminent of the Swabian grandees, put forward claims to the duchy. His sons were banished, and, it was whispered, by Solomon's machinations (911). Yet all this was no check on the aspirations of the two brothers, Erchanger and Bertold, brothers-in-law to the king, who aspired to the Duchy of Swabia. They, too, fell victims to the policy of the prelate, whose hatred was intensified when they laid hands on his person to arrest him. Conrad called a Synod to assist him, and heavy punishment was awarded the pretenders. However, the king had them beheaded, no doubt to please his chancellor. [Illustration: THE FURKA PASS.] The cruel fate of the two made a deep impression on the people. Next year, when Burkhard, son of the unfortunate marquis, returned to his country whence he had fled--for he had joined in the rising of the two brothers, and had been summoned before the Synod--he was unanimously elected by the nobility and people (917). It was no small mortification to both king and bishop to have their designs thus thwarted, the principle they had so vigorously opposed being carried out. The annals of St. Gall bear witness to the fact that Solomon was implicated in the murders, for though usually exalting his merits, they report that the mighty prelate repented of his cruel actions, since he wandered as a pilgrim to Rome, contrite, weeping and lamenting, to do penance for his sins.